Reading Off The Parameters

Data can be read off from the trailer module (TRM) using this function.

Battery voltage 

Reads off the level of the power supply to the control module.

Input signal 

Reads out the status of the stop lamp signal from the vehicle's right tail lamp.

Output signals 

Reads out the status of the output signals to the cable harness for the tow hitch.

Tow hitch connector 

Reads out whether the tow hitch connector is connected to the socket on the cable harness for the tow hitch.